Atherectomy

While an atherectomy can physically remove plaque from arteries, there is no specific medication designed to dissolve plaque. However, certain medications can help slow the progression of plaque buildup and reduce the risk of complications associated with PAD. Statins are often prescribed to lower cholesterol, which can help prevent new plaque from forming and stabilize existing plaque. Additionally, medications like aspirin and antiplatelets may be used to reduce the risk of blood clots forming on the plaque, thus decreasing the potential for severe complications such as critical limb ischemia or amputation. It is important to keep in mind that lifestyle modifications, such as adopting a balanced and healthy diet, exercising regularly, quitting smoking and managing other risk factors like high blood pressure and diabetes, are also essential components of preventing and managing plaque buildup in the arteries.

During an atherectomy or arterial plaque removal, the hardened plaque that has accumulated inside the peripheral arteries is surgically removed. This plaque consists of fatty deposits, calcium, cellular waste and other substances that build up over time. The removal of this plaque helps restore blood flow through the affected artery, alleviating symptoms such as leg pain and cramping and reducing the risk of severe complications like critical limb ischemia or possible limb loss.

Atherectomy or artery plaque removal surgery is typically performed by professionally trained vascular surgeons using advanced equipment and techniques. Here is an in-depth look at how atherectomy is carried out, along with the various types of atherectomy:

• Preparation: Before undergoing an atherectomy, patients typically undergo a series of diagnostic tests to assess the extent and severity of their arterial blockages. These tests may include peripheral angiography, vascular ultrasound and computed tomography angiography (CTA) of the affected limbs. Additionally, routine blood tests and electrocardiography (ECG) may be performed to ensure the patient is medically stable for the procedure.
• Catheter Insertion: On the day of the procedure, the patient is typically admitted to the hospital or outpatient facility. After obtaining informed consent, you will be prepared for the procedure, which involves administering sedation or anesthesia to ensure comfort and relaxation. The surgeon then inserts a thin, flexible tube called a catheter into a large artery, usually in the groin (femoral artery) or wrist (radial artery). Local anesthesia is used to numb the insertion site. The catheter is guided under fluoroscopic (live X-ray) imaging to navigate through the blood vessels and reach the target artery affected by plaque buildup.
• Atherectomy Techniques: Once the catheter reaches the narrowed or blocked artery, the surgeon uses specialized devices to remove or modify the plaque. Several atherectomy types may be utilized, including:
  • Rotational/Orbital Atherectomy: This technique involves a high-speed rotating burr or drill-like device at the catheter's tip. The burr rotates at high speed, allowing it to effectively break up the calcified or hardened plaque into tiny particles, which are then suctioned out or flushed away through the bloodstream.
  • Directional Atherectomy: In this method, a blade or cutting mechanism located at the tip of the catheter is used to shave or dissect the plaque from the arterial walls. The plaque is carefully excised in a controlled manner, minimizing trauma to the surrounding tissues.
  • Laser Atherectomy: Laser energy is used to vaporize and disintegrate the plaque within the artery. The laser catheter emits focused energy pulses that target and dissolve the plaque, transforming it into a mixture of gases and tiny particles that can be safely absorbed and eliminated by the body.
• Post-Procedure Care: After the atherectomy procedure is completed, the catheter is carefully retrieved. Pressure is applied to the insertion site to prevent bleeding. You will be transferred to a recovery area where your vital signs are monitored, and any potential complications are addressed.

Before an atherectomy, you may need to fast for a certain period before the procedure, following instructions from your healthcare provider. Your doctor may need to adjust your medications or tell you to temporarily stop taking them before the procedure, especially blood-thinning medications like anticoagulants. You should inform your doctor about any allergies, medical conditions or medications you are taking. Make arrangements for transportation to and from the hospital in advance.

During an atherectomy, you will be given sedation or anesthesia to help keep you comfortable during the procedure. Your vital signs will be monitored throughout the procedure. Patients should remain still and follow instructions from the medical team. After an atherectomy, you will be monitored for a period to ensure there are no complications. Depending on your condition and the complexity of the procedure, a brief period of observation may be required before discharge. Patients are typically instructed to avoid strenuous activities and heavy lifting for a specified period following the procedure and to adhere to prescribed medications and lifestyle modifications to optimize long-term outcomes. Follow-up appointments will be scheduled to monitor recovery and assess the effectiveness of the procedure.